Re: [Lake] New Version Notification for draft-ietf-lake-edhoc-12.txt

John Mattsson <john.mattsson@ericsson.com> Mon, 25 October 2021 15:32 UTC

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From: John Mattsson <john.mattsson@ericsson.com>
To: "lake@ietf.org" <lake@ietf.org>
Thread-Topic: New Version Notification for draft-ietf-lake-edhoc-12.txt
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Date: Mon, 25 Oct 2021 15:32:45 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/lake/CwcvbSW0EyF09hsqYnaupg1iIm4>
Subject: Re: [Lake] New Version Notification for draft-ietf-lake-edhoc-12.txt
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Hi,

We have submitted:

https://datatracker.ietf.org/doc/html/draft-ietf-lake-edhoc-12

Changes:

- Post-Quantum Cryptography (PQC) considerations. No technical changes. We added the information that PQC signatures like HSS-LMS are already defined for COSE and can be used with method 0. Method 0 is also compatible with a KEM interface so any KEMs including PQC KEMs defined for COSE will be easy to add to method 0. #180 and #17
- Corrected the text regarding encoding of X.509 certificates.
- Added text regarding header parameters, senders, and recipients. In particular x5t-sender etc. #183
- Removed cipher suite definition duplication. This save a page. #142
- Tried to make security properties more clear, based on some recent misunderstandings.
- Explanation of the internal working of COSE is moved to the COSE appendix #171 #177
- More explicit definitions of how to derive keys and IVs
- Resolved the editor’s notes in the MTI section based on the discussion in the interim #73
- Editorial changes

https://datatracker.ietf.org/doc/html/draft-selander-lake-traces-02

Changes:

- The -11 test vectors are still valid for -12
- Raw values for the Connection Identifiers
- The field order in the JSON test vectors in GitHub have been aligned with draft-selander-lake-traces

Cheers,
John

From: internet-drafts@ietf.org <internet-drafts@ietf.org>
Date: Wednesday, 20 October 2021 at 14:50
To: Göran Selander <goran.selander@ericsson.com>om>, John Mattsson <john.mattsson@ericsson.com>om>, Francesca Palombini <francesca.palombini@ericsson.com>om>, Göran Selander <goran.selander@ericsson.com>om>, John Mattsson <john.mattsson@ericsson.com>
Subject: New Version Notification for draft-ietf-lake-edhoc-12.txt

A new version of I-D, draft-ietf-lake-edhoc-12.txt
has been successfully submitted by Göran Selander and posted to the
IETF repository.

Name:           draft-ietf-lake-edhoc
Revision:       12
Title:          Ephemeral Diffie-Hellman Over COSE (EDHOC)
Document date:  2021-10-20
Group:          lake
Pages:          80
URL:            https://www.ietf.org/archive/id/draft-ietf-lake-edhoc-12.txt
Status:         https://datatracker.ietf.org/doc/draft-ietf-lake-edhoc/
Html:           https://www.ietf.org/archive/id/draft-ietf-lake-edhoc-12.html
Htmlized:       https://datatracker.ietf.org/doc/html/draft-ietf-lake-edhoc
Diff:           https://www.ietf.org/rfcdiff?url2=draft-ietf-lake-edhoc-12

Abstract:
   This document specifies Ephemeral Diffie-Hellman Over COSE (EDHOC), a
   very compact and lightweight authenticated Diffie-Hellman key
   exchange with ephemeral keys.  EDHOC provides mutual authentication,
   forward secrecy, and identity protection.  EDHOC is intended for
   usage in constrained scenarios and a main use case is to establish an
   OSCORE security context.  By reusing COSE for cryptography, CBOR for
   encoding, and CoAP for transport, the additional code size can be
   kept very low.




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